License Plate Recognition Test Run (catches an unregistered vehicle)

Our Take

Tait Brown's demo video is a few years old at this point, but it's aged into something more unsettling than it probably intended: proof that the technical barrier to building a license plate surveillance system is basically nonexistent. Using an open-source ALPR library piped into a public vehicle registration lookup, Brown replicated the core function of a multi-million dollar commercial system in a fraction of the code and cost. The video is composited test footage, not live output, but the point lands anyway.

That's the uncomfortable truth underneath the Flock Safety sales pitch. Companies like Flock market their hardware as sophisticated, proprietary, almost magical — the kind of tech that justifies mounting a camera on every other block in your town. But the actual pattern-matching and database lookup at the heart of ALPR isn't exotic. It's plate detection plus a database query, something a motivated person can stitch together from freely available parts. When the technology is this replicable, the only thing standing between casual curiosity and a dragnet is policy, oversight, and public pushback — not some technical moat.

Credit to Brown for pulling back the curtain on how mundane the machinery actually is. If a hobbyist can approximate what cities are paying millions for, it's worth asking harder questions about who's operating these systems near you and what guardrails, if any, exist. Check our camera map to see what's already watching your neighborhood, and visit our take-action page if you want to push back.